add file_exists method to files_trashbin app
add file_exists method to files_trashbin app

owncloud/core,owncloud/core,pmattern/server,pollopolea/core,sharidas/core,nextcloud/server,endsguy/server,IljaN/core,bluelml/core,xx621998xx/server,michaelletzgus/nextcloud-server,cernbox/core,whitekiba/server,phil-davis/core,andreas-p/nextcloud-server,pollopolea/core,cernbox/core,pixelipo/server,cernbox/core,xx621998xx/server,Ardinis/server,pixelipo/server,pmattern/server,nextcloud/server,jbicha/server,sharidas/core,andreas-p/nextcloud-server,andreas-p/nextcloud-server,IljaN/core,endsguy/server,bluelml/core,lrytz/core,whitekiba/server,pixelipo/server,pmattern/server,owncloud/core,pollopolea/core,jbicha/server,Ardinis/server,pmattern/server,whitekiba/server,pixelipo/server,jbicha/server,andreas-p/nextcloud-server,whitekiba/server,owncloud/core,jbicha/server,michaelletzgus/nextcloud-server,IljaN/core,IljaN/core,bluelml/core,endsguy/server,Ardinis/server,endsguy/server,xx621998xx/server,pollopolea/core,Ardinis/server,sharidas/core,cernbox/core,nextcloud/server,sharidas/core,michaelletzgus/nextcloud-server,andreas-p/nextcloud-server,owncloud/core,jbicha/server,lrytz/core,nextcloud/server,IljaN/core,xx621998xx/server,bluelml/core,pixelipo/server,Ardinis/server,pollopolea/core,bluelml/core,cernbox/core,lrytz/core,lrytz/core,sharidas/core,whitekiba/server,lrytz/core,michaelletzgus/nextcloud-server,endsguy/server,xx621998xx/server,pmattern/server